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Besides the selection of the most suitable contact materials , the design and type of attachment is critical for the reliability and electrical life of contact components for electromechanical switching devices. The materials saving use of high cost precious metals and the most economic manufacturing method for contact parts are most important factors.
There are two basic manufacturing solutions available: One can start with single contact parts such as contact rivets or tips which then are attached mechanically or by brazing or welding resp. to carrier parts. In the second case a base material coated or clad with the precious contact metal - for special applications also clad with another non-precious material – in the form of strips or profiles is manufactured as a semi-finished pre-material from which the contact components are then stamped and formed. Besides mechanical cladding other processes such as electroplating and deposition from the gas phase are utilized.
==Manufacturing of Single Contact Parts==
The group of single contacts includes contact rivets, contact tips, and formed parts such as weld buttons. Contact spheres (or balls) are today rarely used because of economical considerations. <br>
Main Articel: [[Manufacturing of Single Contact Parts| Manufacturing of Single Contact Parts]]
==Manufacturing of Semi-Finished Materials==
Semi-finished contact pre-materials can be manufactured from solid precious metals, precious metal alloys, or precious metal containing composite materials. <br>
Main Articel: [[Manufacturing of Semi-Finished Materials | Manufacturing of Semi-Finished Materials]]
The increasing miniaturization of electromechanical components requires ever smaller stamped parts with low dimensional tolerances. Such precision
stamped parts are needed in the automotive technology for highly reliable switching and connector performance. In the information and data processing
technology , they transfer signals and control impulses with high reliability and serve as the interface between electronic and electrical components.
Main Articel: [[Stamped Contact Parts| Stamped Contact Parts]]
